Section Width375 mm (14.8")
Aspect Ratio21%
Rim Diameter33"
Overall Diameter996 mm (39.2")
Sidewall Height79 mm
Circumference3128 mm
375/21R33 — Buy Tires

Everything to know about the 375/21R33 tire size

Size geometry

A 375/21R33 tire has a 375mm section width and a 21% aspect ratio, mounted on a 33-inch rim. Sidewall height works out to 78.8mm (3.10") and overall outside diameter is 995.7mm (39.20"). At highway speed the tire completes about 320 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 375/21R33 is unavailable, the closest same-diameter substitutes on the same rim are 365/22R33 and 385/20R33. Both keep your speedometer reading within 1% — safe for daily use, ABS, and stability control. Always verify load and speed ratings before swapping.

Plus / minus sizing options

For a 375/21R33 you can upsize to 385/17R34 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 365/25R32 (minus-one) for a softer ride or winter setup. Both stay inside the Âą3% diameter tolerance that ABS and TPMS systems expect.

Vehicle compatibility

0 vehicles in our database run the 375/21R33 tire size from the factory. Aftermarket fitment depends on rim width, offset, and clearance — match these specs to your wheel before purchasing tires.

Vehicles Using 375/21R33

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